Picker-motion for looms.



. PATBNTED MAR. s1, 1903;* B. E. SULLIVAN. PICKBRMOTIUN POR LooMs.

APPLIGATION FILED JUNE 11, '1902 N0 MODEL.

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EDWARD E. SULLIVAN, OF FALL RIVER, MASSACHUSETTS.

PICKER-MOTION FOR Looms.

SPECIFICATION formnglpart of Letters Patent No. 724,143, dated March 31, 1903.

I Application filed June ll, 1902. Serial No. 111,122. (No model.)

To a/ZZ whom t may concer-n:

Be it known that I, EDWARD E. SULLIVAN, a resident of Fall River, in the county of Bristol and State of Massachusetts, have'invented certain new and useful Improvements in Picker-Motions for Looms; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention has reference to an improvement in the picker-motions of looms whereby the shuttle is thrown from one side of the loom to the other to lay the weft or filling threads. It is fullydescribed in this specification and illustrated in the accompanying drawings. t

Figure I is a side elevation showing my mechanism attached to one end of the loom, a portion of the loom-frame and the lay partly in section, with a shuttle in position on the lay to be thrown. Fig. 2 is an end elevation of my mechanism with such parts of the frame of the loom and lay as are necessary for illustrating my invention.

In the construction, Ais the frame of the loom, B the lay, and C is the arch of the loon,

frame.

D is the reciprocating shoe, which comes in contact with the shuttle E to throw it. This shoe slides back and forth 011 the-guide-bar F, which latter is adjustably supported in a holder G, said holder being itself adjustably held by the angle-bar H, said angle-bar being held in the bracket I, which is bolted to the side of the lay.

J is a .bracket adjust-ably secured to the arch C, in which is slidably held the supporting-bar K. On the outerend of this supporting-bar is pivoted the bell-crank L, the lower arm of which is connected to the reciprocating shoe D by a flexible strap M. This strap may be made ofieathr, rubber, or other suitable material. The lever N is pivoted on the supporting-arm K, its outer end engaging the horizontalarm of the bell-cran k, while its inner end is connected, through the connecting-rod O, to the foot P. It is squared at its lower end and guided inthe guide-plate R and held np in place by the closed spring S.

main shaft, on which is mounted the crank V.

I do not wish to confine myself to the exact construction of the parts herein shown and described, as they may be varied to suit the construction of the loom and the conditions under which the same is operated.

To' enable others skilled in the art to use and apply my invention, I will now more fully describe the operation of the same.

In a loom the warp is operated by the harnesses to open the shed as the lay moves backward. The shuttleE. (shown on the lay in v Fig. l) has to be thrown through the opened warp-shed fr om one side of the loom to the other while the lay is at or nearly at the farthest point of its backward stroke. As the cranks on the crank-shaft in their rotation operate the lay, I provide auxiliaryA cranks V, one at each side of the loom, from which to obtain the motion for throwing the shuttle back and forth. Only one side of the loom and its mechanism are shown in the annexed drawings, the mechanism on the other side being a duplicate of the same. As this crank V revolves it comes in contact with the foot P, giving it a quick downward motion, which is transmitted through the connecting-rod O and lever N to the bell-crank L, the downwardly-extending arm of which, being connected to the reciprocating shoe D by the strap M, gives it a quick forward motion at the proper time and throws the shuttle across the loom, which is returned by the duplicate mechanism on 'the other side.

In practice the bell-crank L and the mechanism for throwing theshoe orpicker-block D may be located at any convenient place on the loom-arch C, and if placed near its center itngives a sufficient length to the flexible strap M to allow for any movement of the lay in beating up the weft-threads. When the shuttle is thrown across the loom, it strikes the shoe or picker-block D, carrying it to its extreme outward position, tightening the strap, and leaving the block in the proper position for receiving the required stroke to throw the shuttle back again across the loom.

In a picker-motion for looms, in combination with the lay and shuttle, a guide-bar ad- 'l is a shaft on the loom, preferably the IOO jnstabiy held in line with the Iay to move it, each revolution, said rotating shaft and said lo a picker-block arranged to slide on said guidefoot, a connection between said lever and said bar, a bell -erank pivotally hung from the foot, substantially as described.

loom-frame, a exible strap connection be- In testimony whereof I have hereunto set 5 tween said picker-block and the depending my hand this 7thday of June, A. D. 1902.

arm of said hell-crank, a lever pivotally hung EDWARD E. SULLIVAN.

with one end engaging an arm of said bell- In presence oferank, to throw it up, a rotating shafte1ank HOWARD E. BARLOW,

fixed to a rotating shaft engaging a foot at S. L. GABRIEL. 

